Here you can get a free standing frame for lithophane pictures

The frame has the following external dimensions: 130x170x36mm

The pictures must have the following dimensions to be inserted: 120x160mm (max. thickness: 5mm)

The backlight board and the lithophane picture are inserted into the frame from below, with a cutout on the back of the frame for the USB-C port of the backlight board

Then slide the cover onto the frame from below, you should proceed with some caution as it may be a bit stiff at first. When opening, move the cover back and forth a little and pull it off carefully, otherwise the small legs could break off

The frame is also suitable for landscape format

The backlight board used is the original CMYK backlight board from Bambu Lab. I have also tested other third party backlight boards

Note: Apparently not all LED boards are the same, so I created a profile (wider version) where the slot fits 2mm thick boards